Advances of multidetector computed tomography in the characterization and staging of renal cell carcinoma

Figure 9 The 31-year-old man with chromophobe renal cell carcinoma of the left kidney (stage T1b, grade II). A: Axial plain image barely depicts upper pole left renal mass mainly isodense, with a slight bulging of the renal contour (arrow); B: Coronal reformation during the nephrographic phase clearly depicts left renal tumor (arrow). The neoplasm enhances moderately and homogeneously [computed tomography (CT) density: 70 HU, when compared to the CT density of 35 HU on unenhanced images]. A thin hyperdense rim surrounds renal malignancy, proved to correspond to fibrous pseudocapsule histologically.